Appreciate the vital role microbes play in recycling nutrients, providing alternative fuels, and generating oxygen.
Vedic references to invisible creatures.
Explain decomposition and manure.
Imagine a world without microbes. We would quickly be buried under mountains of dead plants and animal waste! Thankfully, microorganisms act as an invisible cleanup crew, constantly recycling waste in our environment.
Bacteria and fungi act on plant and animal waste, breaking down complex dead matter into simpler, nutrient-rich substances. This essential recycling process is called decomposition.
Explain Rhizobium and legumes.
Plants need nitrogen to thrive, but they cannot directly use the abundant nitrogen gas floating in the air. Enter Rhizobium, a special bacterium that acts as nature's own fertilizer factory.
These helpful microbes live inside small, swollen structures called root nodules located on the roots of certain legume plants, such as peas, beans, and lentils.
Visual of root nodules.
Rhizobium bacteria residing in root nodules trap atmospheric nitrogen to naturally fertilize the soil.
Test knowledge of Rhizobium.
A farmer decides to plant a crop of peas (a legume) in a field where she previously grew wheat. Why is this crop rotation highly beneficial for her farm's soil?
Explain biogas production and microalgae benefits.
Many bacteria and fungi thrive in environments completely free of oxygen. When these microbes decompose household wastewater or animal waste, they release a mixture of gases called biogas.
Biogas is primarily composed of carbon dioxide and a large proportion of methane. This powerful gas mixture is widely used as a renewable fuel source for cooking, heating, generating electricity, and even running vehicles!
Visual of a Spirulina tank.
Cultivating Spirulina in controlled, shaded tanks is a growing sustainable livelihood opportunity.